Home / 403,130.58-556,306.26-221,825.56

Finding the Fourth Proportional to 403,130.58, 556,306.26 and 221,825.56

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Solution

The fourth proportional to 403,130.58, 556,306.26 and 221,825.56 is: 306,111.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,130.58 : 556,306.26 = 221,825.56 : x
  2. Step 2: Convert to fraction form
    403,130.58/556,306.26 = 221,825.56/x
  3. Step 3: Cross multiply
    403,130.58x = 556,306.26 × 221,825.56
  4. Step 4: Simplify right side
    403,130.58x = 123,402,947,656.01
  5. Step 5: Solve for x
    x = 123,402,947,656.01/403,130.58
  6. Step 6: Final answer
    x = 306,111.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.